Ok! The first 'controller' bug I've found in 2.0.1... it does not in any way, shape, or form want to recognise the Akai MPD24. Have tried all of the MIDI channels etc, and it still doesn't want to play ball.
For that matter, it doesn't seem to see my AK1 MIDI in, either.
Strange. Have gone back to 2.0.0 which works fine with the AK1 and MPD24.